Cephalocereus

Cephalocereus is a genus of slow-growing, columnar-shaped, blue-green cacti. The genus is native to Mexico, Central America, the Caribbean, and South America.

Species
Cephalocereus albispinus
Cephalocereus alensis
Cephalocereus aleusis
Cephalocereus apicicephalium
Cephalocereus arrabidae
Cephalocereus atroviridis
Cephalocereus aureispinus
Cephalocereus aurisetus
Cephalocereus backebergii
Cephalocereus bahamensis
Cephalocereus bakeri
Cephalocereus barbadensis
Cephalocereus blossfeldiorum